Just a very quick post. There are two extremes when it comes to acceptance of new ideas.
The first extreme is to reject every new idea. This is dogmatism. Dogmatism calls on us to hold a particular set of beliefs and to reject any new, alternative view, without even considering its merits.
The opposite extreme is to accept every new idea. This is gullibility. It is to believe everything you are told.
Clearly, neither extreme is particularly attractive. We need something in between. Why not test new ideas so that we can sort the true from the false? And, to be fair, why not test them in such a way that doesn’t depend on our personal biases? Well, we already have such a system. It’s science, of course.